$(document).ready(function(){
   
   $('#sf_guard_user_email_address').keyup(function(e)
   {
       var email = this.value.split('@');
       $('#td_login').html(email[0]);
       $('#td_pass').html(email[0]);
   });
   
   $('#sf_guard_user_email_address').blur(function(e)
   {
       var email = this.value.split('@');
       $('#td_login').html(email[0]);
       $('#td_pass').html(email[0]);
   });
 
});
